isl8036 Intersil Corporation, isl8036 Datasheet - Page 3

• Manufacturer Part Number: isl8036
• Description: Dual 3a 1mhz/2.5mhz High Efficiency Synchronous Buck Regulator
• Manufacturer: Intersil Corporation

*For ISL8036A, the values used for L1 (or L2) are half the values specified above for each V
*For ISL8036A, the values used for L1 (or L2) are half the values specified above for each V
NOTE: C5 value (22nF) is given by Equation 1 corresponding to the desired soft-start time.
PART NUMBER
L1 (or L2)*
L1 (or L2)*
C2 (or C4)
C2 (or C4)
R2 (or R5)
R3 (or R6)
ISL8036A
V
V
ISL8036
OUT
C1
R2
R3
R6
C6
OUT
C1
TABLE 2. COMPONENT VALUE SELECTION FOR CURRENT SHARING OPERATION
1.0~2.2µH
1.0~2.2µH
Internally fixed switching frequency F
Internally fixed switching frequency F
2X22µF
2X22µF
2x22µF
2x22µF
250pF
0.8V
100k
0.8V
100k
30k
0
0
TABLE 1. COMPONENT VALUE SELECTION FOR DUAL OPERATION
3
1.0~2.2µH
1.0~2.2µH
2x22µF
2X22µF
2x22µF
2X22µF
180pF
TABLE 3. SUMMARY OF DIFFERENCES
1.2V
100k
1.2V
100k
50k
50k
33k
ISL8036, ISL8036A
1.0~2.2µH
1.0~2.2µH
SW
SW
2X22µF
2x22µF
2x22µF
2X22µF
SWITCHING FREQUENCY
87.5k
150pF
1.5V
100k
87.5k
1.5V
100k
31k
= 1MHz
= 2.5MHz
1.0~3.3µH
1.0~3.3µH
2x22µF
2X22µF
2X22µF
2x22µF
1.8V
124k
100k
150pF
1.8V
124k
100k
30k
OUT
OUT
1.0~3.3µH
1.0~3.3µH
.
.
2X22µF
2x22µF
212.5k
2X22µF
2x22µF
212.5k
2.5V
100k
150pF
2.5V
100k
29k
1.0~4.7µH
1.0~4.7µH
October 18, 2010
2X22µF
2x22µF
312.5k
2X22µF
2x22µF
312.5k
150pF
3.3V
100k
3.3V
100k
28k
FN6853.1